#GWLETTER is a handwritten letter from George Washington to his Director of Intelligence delivered in 1780. During the Revolutionary War, George Washington’s Director of Military Intelligence, Benjamin Tallmadge, was a master of espionage. His tactics were the stuff of movies, down to the invisible ink. Tallmadge and his ‘Culper Spy Ring’ prevented 6,000 British troops from landing in Newport and played a significant role in apprehending one of Benedict Arnold’s co-conspirators.